Saw-mill dog



(No Model.) E. FRI-IY.

` SAW MILL DOG. 4 No. 252,451. Patented Jan. 17,1882.

` 222122 eufew,

I ad@ mm3 UNITED STATES FREDERIC EREY,

` OF BUOYRUS, OHIO.

SAW-MILL4 Doe.

SPECIFICATION forming part of` Letters Patent No. 252,451, datedJanuary17, 1882.

l Application tiled October 31,1881. (No model.)

To all whom it may concern:

Be it known that l, FREDERIC E. FREY, a citizen of the-United States ofAmerica, resid-A ing at Bucyrus, in the county of Crawford and State ofOhio, have invented certain new and useful Improvements in Saw-MillDogs; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same,referencebeing` had to the accompanying drawings, and to letters or iigures ofreference marked thereon, which form a part of this specification.

This invention has relation to certain improvements in saw-milldogs; andit hasfor its object to provide a saw-mill dog which can be graduatedandsecured at any height desired, and which alsocan be laterally adjustedand secured in the timber by actuating a lever.

My inventiontherefore consists in a rotary shaft having at one end anengaging-dog and at the other end a weighted lever or handle, incombination with a follower provided with eX- tending bars and a blockformed with passages for the reception and passage of the hars of thefollower.

My invention further consists in a shaft formed of smaller diameter nearone end, and provided thereon with afollower havingextending bars, incombination with a slotted sliding block fitting on said bars, andprovided with an eccentric-lever impin ging on the Vextending bars.

My invention also consists, in asaw-mill dog, of a shaft formed with adog atone end and a lever-handle at the other end, having an annularspace between the lever-cap and shoulder of the shaft, wherein isiitteda follower having lateral extending bars with a slotted slidingblock provided with a double-eccentric lever acting on the extendedbar,in combination with a vertical bar fitted in a slot ofthe sliding`block.

My invention further consists, in a saw-mill dog, of a horizontal shaftwith a dog at one end and a weighted lever-handle atthe other, and anannular space between the lever end and the shoulder on the shaft, andhaving a follower tting' therein, in combination with a spring fixed tothe follower capable of receiving and retaining the weighted handle whenat rest.

My invention also consists, in a saw-mill dog, ofthe combination, withasawcarrage knee, of an upright standard-bar, a sliding block providedwith an eccentric-lever, and a shaft provided with a follower operatingin an annular space and having extended bars, as hereinafter described.

Myinvention further consists in the novel coustructionl and combinationof parts, as will be hereinafter more fully set forth and specific-all yclaimed.

In the accompanying drawings, Figure l is a perspective view, showingthe improvements in connection with the knee of a smi/carriage Fig. 2 isa front View of the art-hed bar and its connections. Fig. 3 is a sideview, showing the mode of dogging the timber; and Fig. 4 is a transversesectional view. y

Like letters refer to and identify like parts.

The letter A represents a shaft formed or provided at one end with thedog-head a, eccentrically arranged to the shaft, as shown, and

`from thence turned true until near the end,

when it is turned ofless diameter, so as to form a shoulder, for thepurpose hereinafter mentioned.

The letter B represents a follower, which is formed and shapedsubstantially as seen in Figs. l and 4. This follower is formed with acentral circular hole fitting over the smaller part of the shaft A andabutting against the shoulder formed therein, aud is provided with thehorizontallyextending bars b b', which are secured and fastened in theupper and lower ends of the follower, and so as to admit the shaftbetween them, and to the outer end of the follower is secured, by anysuitable means, a spring, o, which receives and retains the handle ofthe weighted lever C, by which the dog-head is forced into and fromcontact with the timber. This lever O is formed at its lower end with astrong cap-piece, d, which fits over and is firmly keyed to the end ofthe shaft A, with the follower set between the shoulder in the shaft andthe inside of the cap. On the end of this lever is a weight, e, for thepurpose of giving security when the dog is setin the timber.

The letter D represents'the sliding block, formed with a sleeve, I, forthe passage of the shaft A, the horizontal slots g for thepassage IOOand is so represented because in that shape itcan be the better.fastened to the ordinary knee of a saw-carriage.; but the double bar isnot essential, since other means may be used to effect the attachment.

The letter F represents the double eccentriclever pivo'tally attached tothe sliding block. and impinging against the extending rods b b throughslots in the sliding block, as seen in Fig. 2of the drawings. rIheoffice of this lever is, when thrown back, to press upon the extendingbars, and then force them against the upright bar, and by frictionsustain vthe sliding block in any desired position, firmly securedagainst displacement either lateral or vertical.

rlhe parts being arranged as set forth in the foregoing and shown in thedrawings, the operation of thel devices is as follows:Theeccentric-lever is pulled forward,I thus freeing the extending barsand uprights from the pressure and permitting the sliding` block to beraised or lowered on the standard to suit the condition of the timberand the shaft to be drawn outward or pushed inward, and when adjustedand arrangement of parts without departing v from the spirit oftheinvention herein set forth. What I claim as my invention, and desire tosecure by Letters Patent, is-

1. In a saw mill dog, a rotary shaft constructed at one end with theengaging-dog eccentrieally arranged to the shaft and at the other endwith a weighted lever, a follower with extending bars, and a blockformed with pas sages for the reception and passage ofthe bars of thefollower, substantially as described.

2. A shaft formed at one end with a dog-head and at the other providedwith a weighted lever, in combination with a follower set in a shoulderof the shaft, said follower provided with extending bars and a slidingblock, substantially as described, and for the purpose set forth.

3. In a saw-mill dog, a horizontal shaft with a dog-head at one end anda weighted lever at the other, and provided with a follower withextending bars fixed in thev annular groove formed between the shoulderon the shaft and the end of the lever-cap, in combination with springxed to the follower and capable of receivingandretainingthehandleoftheweighted lever, substantially as described.

4. In a saw-mill dog, the combination, with a horizontal rotary dogshaftprovided with a lever for actuating the same, of a vertical slidingblock with horizontal passages, a follower with extending arms passingthrough said block, anda double-ended eccentric-lever bearing on saidarms, substantially as and for the purpose set forth. I

5. 'Ih'e combination, with a saw carriage knee, of an upright standard,aver-tical adjustable block formed with horizontal passages, theeccentric-lever, the follower with arms extending through said passages,and a rotary dogshaft with an actuating-lever, substantial] y as setforth.

In testimony whereof I affix my signature in presence of two witnesses.

FREDERIC E. FREY.

Witnesses:

A. W. DILLER, C. F. HOOVER.

